Since 1484, Portugal had emerged as the first seapower in Western Europe.

从1484年起，葡萄牙就是西欧最先兴起的海上强国。

This essay has offered some thoughts mainly on the subject of china's seapower.

本文主要对有关中国海权的问题提出了一些思考。

British seapower, after two centuries of hegemony, vanished from the Indian Ocean.

掌握了两个世纪霸权的英国海军，在印度洋上销声匿迹了。

Britain was once the greatest seapower in Europe and established a stronghold in India after long periods of colonial wrangling.

英国是欧洲的海上强权国家，在过去长期的殖民争霸中，英国树立了在印度的霸主地位。

Theoretically, seapower is an imported concept in China, which naturally has been affected by the difference between the English and the Chinese language environment.

从理论上讲，海权概念对于中国是一个舶来品，自然受到英文语境与中文语境不同的影响。